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From "John Zhuge (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-14083) KMS should support old SSL clients
Date Sun, 19 Feb 2017 10:15:44 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-14083?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

John Zhuge updated HADOOP-14083:
--------------------------------
    Attachment: HADOOP-14083.branch-2.002.patch

Patch branch-2.002
- Use file catalina.properties to transfer KMS properties instead of env CATALINA_OPTS
- Create catalina-default.properties to store default Tomcat properties
- Update doc

TODO
- Discuss Allen's idea of strong security by default

Follow up in a new JIRA
- Refactor KMS scripts based on catalina.properties technique

Testing done
- Run https://github.com/jzhuge/hadoop-bats-tests/blob/master/kms.bats in insecure and SSL
single node setup
- Run sslscan to verify ciphers in the following test cases:
    -- No KMS_SSL_CIPHERS, to allow KMS default ciphers
    -- KMS_SSL_CIPHERS=“TLS_RSA_WITH_AES_128_CBC_SHA256“, to allow this cipher only


> KMS should support old SSL clients
> ----------------------------------
>
>                 Key: HADOOP-14083
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14083
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: kms
>    Affects Versions: 2.8.0, 2.7.4, 2.6.6
>            Reporter: John Zhuge
>            Assignee: John Zhuge
>            Priority: Minor
>         Attachments: HADOOP-14083.branch-2.001.patch, HADOOP-14083.branch-2.002.patch
>
>
> HADOOP-13812 upgraded Tomcat to 6.0.48 which filters weak ciphers. Old SSL clients such
as curl stop working. The symptom is {{NSS error -12286}} when running {{curl -v}}.
> Instead of forcing the SSL clients to upgrade, we can configure Tomcat to explicitly
allow enough weak ciphers so that old SSL clients can work.



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